E89 Rear carbon diffuser

[Breaker]

Pricey though!!

http://www.europeanautosource.com/product_info.php?cPath=67&products_id=3091

 

[cj10jeeper]

Ouch - Makes £370 for the E85 BMW version look a bargain

 

[Breaker]

Not too sure it suits this Z4 though- to be honest! :?